Christopher is a Canada Research Chair in Indigenous Mental Health and Addiction, an Associate Professor in the Department of Psychology at Lakehead University and the Division of Human Sciences at the Northern Ontario School of Medicine, and the Director of the Centre for Rural and Northern Health Research at Lakehead University. He is also the Associate Vice President Research at the Thunder Bay Regional Health Sciences Centre and Chief Scientist at the Thunder Bay Regional Health Research Institute. In addition to his academic appointments, Christopher is a registered clinical psychologist providing assessment, intervention, and consultation services for First Nations children, adolescents, and adults at Dilico Anishinabek Family Care. Christopher is Ojibway and a member of Pays Plat First Nation.